:root{color-scheme:dark;--bg: #0f1a14;--bg-elev: #17241c;--line: #2a3d31;--text: #e8f0ea;--muted: #9bb0a3;--accent: #6fcf97;--accent-ink: #0b1a12;--danger: #ff8e8e;--ok: #8dffb0;--radius: 16px;--font: "Segoe UI", "Helvetica Neue", sans-serif;font-family:var(--font);background:radial-gradient(1200px 600px at 10% -10%,#1c3326 0%,var(--bg) 55%);color:var(--text)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{min-height:100dvh}button,input,select{font:inherit}a{color:inherit;text-decoration:none}.app-shell{min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto;max-width:480px;margin:0 auto}.topbar,.page,.bottom-nav{padding-left:16px;padding-right:16px}.topbar{display:flex;justify-content:space-between;align-items:center;padding-top:16px;padding-bottom:8px}.brand{margin:0;font-weight:700;letter-spacing:.02em}.page{padding-bottom:88px}.bottom-nav{position:sticky;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding-top:10px;padding-bottom:calc(12px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--line)}.bottom-nav a{text-align:center;padding:10px 4px;border-radius:12px;color:var(--muted);font-size:.85rem}.bottom-nav a.active{background:var(--bg-elev);color:var(--accent);font-weight:600}.auth-screen{min-height:100dvh;display:grid;place-items:center;padding:24px 16px}.auth-card,.panel{width:100%;background:color-mix(in srgb,var(--bg-elev) 92%,black);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.auth-card{max-width:420px}h1,h2{margin:0 0 8px}.lede,.muted{color:var(--muted)}.stack{display:grid;gap:14px}.tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:18px 0 8px}.tabs button,.ghost,.primary{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:transparent;color:var(--text);cursor:pointer}.tabs button.active,.primary{background:var(--accent);color:var(--accent-ink);border-color:transparent;font-weight:700}.ghost:hover,.tabs button:hover{border-color:var(--accent)}label{display:grid;gap:6px;font-size:.92rem}input,select{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:#0c1510;color:var(--text)}select{-webkit-appearance:none;-moz-appearance:none;appearance:none}.error{color:var(--danger);margin:0}.ok{color:var(--ok);margin:0}.list{list-style:none;margin:0;padding:0;display:grid;gap:10px}.list 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transparent}a.primary.link-btn{background:var(--accent);color:var(--accent-ink);font-weight:700}a.ghost.link-btn{border-color:var(--line)}.import-label{display:inline-flex;justify-content:center;align-items:center;cursor:pointer;margin:0}.set-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}.set-row{display:grid;grid-template-columns:28px 1fr 1fr auto;gap:8px;align-items:end}.set-num{font-weight:700;color:var(--accent);padding-bottom:12px}.exercise-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}.exercise-row{display:grid;grid-template-columns:64px 1fr auto;gap:12px;align-items:center;padding-bottom:10px;border-bottom:1px solid var(--line)}.exercise-thumb{width:64px;height:64px;object-fit:cover;border-radius:12px;background:#0c1510;border:1px solid var(--line)}.exercise-thumb.placeholder{background:color-mix(in srgb,var(--bg-elev) 80%,black)}.provenance{margin:.25rem 0 0;font-size:.85rem}.exercise-meta{min-width:0}.session-entry{gap:12px}.session-gif-wrap{margin:-8px -8px 0;border-radius:12px;overflow:hidden;background:#0a120e;border:1px solid var(--line);aspect-ratio:1 / 1;max-height:min(72vw,340px)}.session-gif{display:block;width:100%;height:100%;object-fit:contain;background:#0a120e}.session-entry-title h2{margin:0 0 4px}.session-entry-title .muted{margin:0}.attribution{font-size:.8rem;text-align:center}.attribution a{color:var(--accent);text-decoration:underline}.week-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.week-chip{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 6px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--text);min-height:44px}.week-chip.active{border-color:var(--accent);background:#1e3327}.row-3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.stack.tight{gap:8px}.bottom-nav{gap:4px;font-size:.82rem}